Add 49/21 and 81/24
1st number: 2 7/21, 2nd number: 3 9/24
49/21 + 81/24 is 137/24.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 24 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 21 × 8 = 168,
49/21 = 49 × 8/21 × 8 = 392/168 - Likewise, for the 2nd fraction, since 24 × 7 = 168,
81/24 = 81 × 7/24 × 7 = 567/168 - Add the two like fractions:
392/168 + 567/168 = 392 + 567/168 = 959/168 - 959/168 simplified gives 137/24
- So, 49/21 + 81/24 = 137/24
In mixed form: 517/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/21+81/24 49/42+81/24 49/21+81/48 49/63+81/24 49/21+81/72